From 6726704e7ba5b1309ff896be3ad45b8bec092588 Mon Sep 17 00:00:00 2001 From: jvoung Date: Wed, 8 Apr 2015 17:53:30 -0700 Subject: Add PNaCl release note about how to try out Subzero / which flag to set. BUG= https://code.google.com/p/nativeclient/issues/detail?id=4091 Review URL: https://codereview.chromium.org/1059423002 Cr-Commit-Position: refs/heads/master@{#324321} --- .../doc_generated/reference/nacl-manifest-format.html | 2 +- native_client_sdk/doc_generated/sdk/release-notes.html | 10 ++++++++++ 2 files changed, 11 insertions(+), 1 deletion(-) (limited to 'native_client_sdk/doc_generated') diff --git a/native_client_sdk/doc_generated/reference/nacl-manifest-format.html b/native_client_sdk/doc_generated/reference/nacl-manifest-format.html index b796f0c..69de516 100644 --- a/native_client_sdk/doc_generated/reference/nacl-manifest-format.html +++ b/native_client_sdk/doc_generated/reference/nacl-manifest-format.html @@ -77,7 +77,7 @@ section for the rules on URL resolution.

} } -

Portable Native Client applications can also specify an optlevel field. +

Portable Native Client applications can also specify an optlevel field. The optlevel field is an optimization level hint, which is a number (zero and higher). Higher numbers indicate more optimization effort. Setting a higher optimization level will improve the application’s diff --git a/native_client_sdk/doc_generated/sdk/release-notes.html b/native_client_sdk/doc_generated/sdk/release-notes.html index 58762a8..a96ec9f 100644 --- a/native_client_sdk/doc_generated/sdk/release-notes.html +++ b/native_client_sdk/doc_generated/sdk/release-notes.html @@ -25,6 +25,16 @@ browser (version Y). deprecated and will be removed in the next release. PNaCl has used libc++ (which is much more up-to-date, currently based on LLVM 3.6) as the default since Pepper 33. +

  • PNaCl’s experimental Subzero translator is available for x86-32 NaCl in +Chrome version 43, behind a flag. To give it a try, run Chrome with the +--enable-pnacl-subzero commandline flag, and use the optlevel 0 +NaCl manifest option. Application startup time +should be several times faster than the previous LLVM-based optlevel 0 +mode, with similar code quality. Note that x86-32 NaCl requires a 32-bit +Chrome. On Windows, it also requires a 32-bit Windows OS, but 64-bit Linux +OSes can run x86-32 NaCl. If you try it out, please send us feedback +on native-client-dev. We are working on improvements and adding +new targets.

    • Pepper